Neuroblastoma in newborns is a fairly rare disease and affects 6-8 children per million children. It can be combined with congenital defects, has a tendency to metastasize and to spontaneous maturation in ganglioneuritis, which can simulate various diseases and significantly complicate its diagnosis. This publication provides clinical observations of a newborn baby with a neuroblastoma located in the maxillofacial area. Attention is drawn to the difficulties encountered in establishing a clinical diagnosis, to address questions about this, it is recommended that modern, highly informative methods of examination be more widely involved in examining such children, preferably in the early stages of the disease. Against the background of an unceasing increase in the number of malignant neoplasms of the maxillofacial area among the Ukrainian population, directly among the residents of the Poltava region, this figure is 2.3% of the total number of newly diagnosed malignant formations. Asymptomatic course and "erosion" of clinical manifestations of tumors at their initial stages of development, the untimely treatment of patients with specialized assistance against the background of inadequate awareness among citizens and healthcare professionals in this section of medicine and their lack of oncological anxiety leads to the fact that a significant proportion of patients falls on treatment with abandoned forms. In particular, according to the statistical reporting of the Poltava regional oncologic dispensary at stages III and IV, the malignant process in the tissues 41.6%, of which 54% is cancer of the oral mucosa, from 28%, where the cancer of the tongue is in 10% of cases of lung cancer and 8% diagnosed salivary gland cancer. It is rather unfortunate, but in 55% of the observations, the cause of late treatment is organizational and methodological disturbances: not enough complete examination of patients, to the hospital stage (underestimation of clinical data, X-ray changes, incorrect interpretation of the results of additional methods of examination), insufficient prophylactic work among the general population or a sequence of its planning, poor quality preventive examinations, delayed patients in the grass-roots of medical institutions. In spite of the fact that a significant proportion of organs and tissues of maxillofacial area are available for objective and application of additional methods of examination, about 40% of patients have launched forms of malignant processes due to the faults of doctors [2, 3, 5, 8]. In nursery practice, the situation does not look better, since in Ukraine, 3.5% of cases of malignant tumors are diagnosed annually in Ukraine. Unfortunately, in periodicals there are isolated data on primary and metastatic lesions of maxillofacial area in children, although the recognition and treatment of oncosomatic diseases in them in the early stages of development to date present considerable difficulties due to the large variety of clinical manifestations of tumors, age-specific features, dependence of diagnosis malignant neoplasms from the dynamics of growth, localization, local and general changes [6,7]. Therefore, in our opinion, the number of diagnostic errors in children's practice is greater than in adults. The problem is of general medical significance also because, due to topographic and anatomical features of the structures of the head and neck, any pathology of maxillofacial localization is the subject of participation of doctors in various related specialties. Thus, the given clinical case indicates the possibility of a malignant effect of tissues and organs of a child already during the period of fetal development, which greatly complicates the diagnostic procedure and should alert doctors of all specialties.

Introduction: Impacted teeth is complex anomaly of teeth eruption that requires a balanced approach not only in the differential diagnosis of its forms, but choice of rational methods of treatment. The aim: Optimization of the tactics of orthodontic-surgical treatment of patients with impacted teeth based on the development and implementation of computed tomographic indices (KT) and photometric indices (FM) of opening of surgical access (OSA) to crowns of impacted teeth Materials and methods: The results of treatment of 48 patients with delay of permanent teeth eruption have been analyzed. For an objective assessment of treatment results, a group of 24 (aged from 9 to 19 years old ) was formed. All 24 patients had typical clinical situation. Results: Orthodontic correction of patients envisaged, first of all, the elimination of obstacles in the way of teeth eruption, if necessary to provide space in dental arch and simultaneous treatment of associated bite malocclusions. Surgical exposure of impacted tooth crown was carried out and at the same time a triangular shaped guiding channel was formed, base of channel was at the impacted tooth and its angle finished into the dental arch. Precise dimensions and depth of the channel were preliminary planed on computed tomography slices with 3D reconstruction. Mean values of CT width (7,13±0,54mm), and length (6,42±0,78mm) of OSA and CT index (130,79±8,19%) of OSA to impacted teeth crowns were determined. Conclusion: To improve the quality of diagnosis and optimization of methodological approaches to treatment of patients with teeth impaction, we have proposed CT and FM OSA indices to the crowns of impacted teeth. The developed indices serve as specific reference points for optimization of diagnostic process, for reducing of probability of repeated surgical interventions and choosing the optimal path for instrumental orthodontic treatment of patients with impacted teeth

Impacted teeth are rather common and complex dentofacial anomaly, which requires a balanced approach not only in differential diagnosis of its specific nosological form, but also in a choice of rational treatment methods. Taking into account the multi-factor nature of conditions formation for delay of teeth eruption, an approach to treatment should be directed towards guiding links of pathogenesis. The aim of the study is to increase effectiveness of surgical and orthodontic treatment of patients with impacted teeth of anterior maxillary region by studying morphological features of mucous membrane over impacted teeth, depending on conditions of their positioning. A group of 21 individuals aged from 15 to 17 years was formed to evaluate objectively the results of our work. Clinical situation in all the patients was the same according to diagnostic criteria as presence of impacted maxillary canines and medium level of vertical depth of impaction (in alveolar process); root formation: completely formed, with deviation of longitudinal axis of impacted tooth from correct axis of eruption from 15º to 45º. During further analysis, clinical subgroups were identified depending on conditions of impacted teeth positioning in vestibular-oral direction. Moderate dystrophic changes in stratified squamous epithelium, moderate sclerotic changes in papillary layer of lamina propria were found based on findings of microscopic structure of mucous membrane over palatal positioning of teeth. During investigation of morphological structure of mucous membrane over labially positioning of impacted teeth, there were phenomena of hyperkeratosis, an increase in the number of intraepithelial lymphocytes, presence of epithelial cells in the basal layer with signs of hydropic degeneration. In papillary layer of lamina propria of mucous membrane, sclerotic changes were observed, which were more pronounced in comparison with palatal positioning of impacted teeth. Complex analysis of results of morphological studies showed that in mucous membrane positioning over impacted teeth there is deterioration with anemia in filling conditions of microcirculatory bed, discirculatory disorders, which leads to formation of ischemic zones and development of dystrophic and sclerotic processes. Morphological features of the structure of mucous membrane over impacted teeth is an important to consider while planning surgical and orthodontic treatment, and to some extent, it is possible to adjust management tactics of such patients, taking into account labial or palatal positioning of impacted teeth.

No abstract

Lymphangiomas have a dysontogenetic origin, that is, they occur during the development of the fetus and are treated as an abnormal development of the endothelium of proliferating lymphatic vessels and manifest clinically, most often immediately after the birth of a child or in infancy. According to data published earlier by the staff of our department, among benign tumors of soft tissues of maxillofacial area, dermoid cysts (32.6%) take first place. The second place is given to hemangiomas (26.0%); lymphangiosis of such localization are quite rare, accounting for only 3% of the total number of tumors of soft tissues of the face and neck, which causes certain features of tactical approaches to choice and scope of diagnostic measures. In general, lymphangioma, a malformation of the lymphatic system, accounts for 9% of all soft tissue germline tumors and is diagnosed immediately after birth in 65-85% of children, with their superficial location. When they are located in the maxillofacial region, aesthetic deficiencies or functional impairments can be quite pronounced. The features of their topographic-anatomical location in deep fiber spaces and in the area of the floor of the oral cavity cause considerable difficulties in the conduct of diagnostics, the choice of tactical operating techniques and methods of treatment, because the postoperative period is accompanied by a high probability of complications. The presented content of the medical history indicates that the diagnosis of deep-seated and bulky lymphangiomas in young children is rather difficult. Especially, when it comes to festering and combined with acute infectious somatic diseases, it can provoke the occurrence of the inflammatory process directly in the lymphangioma. Attention is drawn to the fact that the frequency of diagnostic errors at the prehospital stage is 75%. Basically, the children were sent to hospital with an incorrect diagnosis, although they were under the supervision of district pediatricians for a long time and repeatedly looked around at a pediatric surgeon. The purpose of our study was to study the peculiarities of clinical manifestations and the diagnosis of volumetric, deep-seated lymphangiomis of the maxillofacial focal infiltration in a child of infancy. Routine diagnostic methods, such as needle biopsy and modern computed tomography, make it possible to unify the diagnostic process to a great extent and decide on the optimal option for operative access and the volume of surgical intervention. There are also certain difficulties in the choice of pharmacological drugs and their dosage when it comes to the combination of a diffuse purulent process with acute manifestations of the pathology of infectious origin. This category of children is subject to dynamic observation to exclude the possibility of recurrence of lymphangioma in conditions of its incomplete necrotization with timely involvement of measures.